The data option describes the path that is the base for the media files
directory, and where pretalx will save log files. Unless you have a
compelling reason to keep those files apart, setting the data option is
the easiest way to configure pretalx.

Every Django application has a secret that Django uses for cryptographic signing.
You do not need to set this variable – pretalx will generate a secret key and save it in a local file if
you do not set it manually.

pretalx supports most SQL databases, although you’ll need to install the appropriate Python
library for each of them, as described in the table below. The default is SQLite, which is not a
production database. Please use a database like PostgresQL or MySQL.